<?php

// sha1 is 40 bit encryption technique
// It is one way hashing
// encrypted string contain HexaDecimal Numbers
// length of encrypted string is 40 characters



$a = 'Hello';
var_dump( sha1($a) );//string(40) "f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0"

$a = 'This is bigger string then previous';
var_dump( sha1($a) );//string(40) "d41c4b64a3ed260b2516b70d9f82445f3d587600"

